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Trekking Sleeping Bag MT500 15 degrees Celcius - Polyester
It is ultra compact and lightweight – perfect for summer use. The 2 side zips with double sliders provide optimal ventilation. This sleeping bag can be twinned.
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San Francisco, 735 Market St. Options
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Product Videos
Product Features

Optimal temperature
Comfort temperature 15°C, limit temperature 10°C. Synthetic padding
Easy to transport
For size LWeight: 680 g. Volume 4.5 Litres. Stuff Bag
Sleeping comfort
Very comfortable mummy shape. 2 x 3/4 zips with a two-way cursor for ventilation
Compatibility
Can be twinned with other models from the Forclaz MT500 range
Water repellent
Outer surface of the fabric is treated so that water runs off the surface
Questions & Answers
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Product Customer Reviews

The pack-ability of this sleeping bag was the main reason we bought it. I run cold so I usually get a little chilli in the mornings but I wear long-johns now and I am more comfortable. We also love being able to zip together our bags
Soft and comfy to about 15deg, was a little cold in the middle of the night when it was 11deg but not too bad. Easy to pack it back into the little bundle, very happy!
I thought I needed to spend a fortune for a mini, light sleeping bag to carrie for a hike. You don't, this works totally fine. It compresses very well. I bought it with a silk liner in case it gets a little colder at night
Very bad to sleeping on
Suitable for warm nights and lightweight for hiking. Zips on either side meaning cold air flows across your body all night. Zips are cheap poor quality, is a struggle to gets zips up and virtually impossible when you’re inside the bag. Very slippy material and toggles on inside of hood meaning they irritate your face. Overall good for a night in summer.
Quality
Light and acceptable temperature range
Hi Matthew,
Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product!
We sincerely appreciate your insight! It's also our pleasure to ensure you have the best experience with our products!
We can't wait to offer you more and better products in order to delight your sports experiences!
If you have any more questions, comments, please feel welcome to reach back out as we would be more than happy to share and assist. Hope to see you around soon!
Stay healthy!
Icy Chan
Decathlon Hong Kong Hiking & Trekking Team
Good product quality
Hi Ivan,
Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product!
We sincerely appreciate your insight! Thank you for your feedback and we will pass it to the product design department for reference, in order to build better offers in the future!
We can't wait to offer you more and better products in order to delight your sports experiences!
If you have any more questions, comments, please feel welcome to reach back out as we would be more than happy to share and assist. Hope to see you around soon!
Stay healthy!
Ken
Hiking and Trekking team
Good
Average Quality products
Nice material and veey useful in cold place
This sleeping bag I bought for my daugther for her camping trip; this is easy to carry in a compact carry case, and it is made of really good materials
Good product
Very bad product
Hi,
Thank you for taking out time to write the review for Trekking Sleeping Bag MT500 15°C Polyester.
We would really appreciate it if you can tell us in detail what you didn't like about the product so that we can pass on the same feedback to the concerned team for further improvements. However, if you are not happy with the product you can visit your nearest Decathlon Store and our team can definitely provide an appropriate solution for the issue you are facing with the product.
Thank You
Rishab Puri
Decathlon Sports India
Very comfortable and easy to carry
Additional Product Information
Composition
Padding: 100.0% Polyester ; Main fabric: 100.0% Polyester ; Carry bag: 100.0% Polyester ; Lining: 100.0% Polyester
What is the temperature rating?
We display the comfort temperatures on all our sleeping bags, tested by an independent laboratory (AITEX) in compliance with European standard ISO 23537-1:2022. The comfort temperature rating is the lower limit at which the user in relaxed posture is generally in thermal equilibrium and feels neither too cold nor too hot (for a standard woman in normal conditions of use). Choose your sleeping bag according to this criterion.
What is the temperature rating (lower limit at which you feel comfortable)?
The comfort limit temperature is the temperature limit at which a person curled up in the sleeping bag is in general thermal equilibrium, neither too cold nor too hot (determined for a man in normal conditions of use).We recommend using an insulation mattress to optimise your thermal comfort.
An important clarification concerning the iso 23537-1 standard
In the context of this standard, the measurement protocol of a sleeping bag’s thermal protection uses a mattress with thermal resistance equal to an R-value of 4.8.This means that by using a less insulating mattress, the thermal performance of your sleeping bag will be lower.We therefore recommend you use an insulating mattress to optimise your thermal comfort.
Tips before getting into your bag
Dress simply (1 layer of clothing is enough). Warm-up your extremities: hats, gloves, socks, hand/feet warmers, rubdowns, etc. A flask of hot water can be used as a hot water bottle (as long as there's no chance of it accidentally opening!) Contract your muscles (70% of the energy consumed is converted into heat) but do it without moving as this could create a draught. Use a bag liner to optimise warmth and avoid washing your sleeping bag too frequently.
Style
A generous mummy shape that is wide at the shoulders and narrow at the feet to optimise thermal insulation (no heat loss) and make the product more compact, while maintaining some freedom of movement.Shoulder width 70 cm, height at feet 32 cm in size L, 62/28 in S, 66/30 in M, 74/34 in XL
Weight and dimensions
Size S: 590 g, user up to 1.59m tall. Bag dimensions: L 27 cm Ø 12.5 cm. Volume 3.3 L.Size M: 630 g, user from 1.60m to 1.69m tall. Bag dim.: L 27 cm Ø 13.5 cm. Volume 3.9 L.Size L: 680 g, user from 1.70m to 1.84m tall. Bag dim.: L 27 cm Ø 14.5 cm. Volume 4.5 Litres. Size XL: 740 g, user from 1.85m to 2m tall. Bag dim.: L 27 cm Ø 15.5 cm. Volume 5.1 L.Volume & dimensions may vary according to the compression applied to the product.
Functions
Ergonomic hood with drawcord.A baffle along the zips prevents heat loss.Double-slider zips for optimal ventilation.The top of the sleeping bag can be opened with the two side zips.
Want to know more about the wadding?
We use 1 layer of 100% polyester wadding (90% recycled) of 60 g/sqm.It retains its warmth even when wet.
Compatibility
Can be twinned with all the Forclaz MT500 sleeping bag models.Can be twinned with the older models in the 2017 ”Ultralight” and 2018 ”Light” ranges.
Product testing
All our sleeping bags undergo mechanical tests that test the performance and resistance of the sleeping bag to guarantee better sleep and recuperation (thermal resistance, resistance to abrasion, comfort, etc). We also carry out many tests in the field, in real conditions.
Storage instructions
You can easily store your bag by stuffing it loosely into its cover, feet section first. To keep it fluffed up & ensure good thermal performance, remove from its cover, extend, store it in a dry place.
Origin
Imported
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